Dec 17 23:36:00.307 INFO checking greyblake/conway-rs against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 23:36:00.308 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/greyblake/conway-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 23:36:00.727 INFO [stdout] f3bdb1d805923decf8580c1517069b7dfda5e1bd8c37f45561280eb2a3136f65
Dec 17 23:36:00.734 INFO running `"docker" "start" "-a" "f3bdb1d805923decf8580c1517069b7dfda5e1bd8c37f45561280eb2a3136f65"`
Dec 17 23:36:02.223 INFO [stderr]     Checking term_size v0.1.1
Dec 17 23:36:02.223 INFO [stderr]     Checking termion v1.1.1
Dec 17 23:36:02.612 INFO [stderr]     Checking clap v2.11.0
Dec 17 23:36:07.252 INFO [stderr]     Checking conway v0.1.0 (/opt/crater/workdir)
Dec 17 23:36:07.764 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.66s
Dec 17 23:36:08.522 INFO running `"docker" "inspect" "f3bdb1d805923decf8580c1517069b7dfda5e1bd8c37f45561280eb2a3136f65"`
Dec 17 23:36:08.856 INFO running `"docker" "rm" "-f" "f3bdb1d805923decf8580c1517069b7dfda5e1bd8c37f45561280eb2a3136f65"`
Dec 17 23:36:09.104 INFO [stdout] f3bdb1d805923decf8580c1517069b7dfda5e1bd8c37f45561280eb2a3136f65